transcoder | Transcoding library implementation in Golang | Messaging library

 by   floostack Go Version: v1.1.1 License: MIT

kandi X-RAY | transcoder Summary

kandi X-RAY | transcoder Summary

transcoder is a Go library typically used in Messaging applications. transcoder has no bugs, it has no vulnerabilities, it has a Permissive License and it has low support. You can download it from GitHub.

Transcoding library implementation in Golang

            kandi-support Support

              transcoder has a low active ecosystem.
              It has 252 star(s) with 74 fork(s). There are 6 watchers for this library.
              It had no major release in the last 12 months.
              There are 11 open issues and 12 have been closed. On average issues are closed in 43 days. There are 1 open pull requests and 0 closed requests.
              It has a neutral sentiment in the developer community.
              The latest version of transcoder is v1.1.1

            kandi-Quality Quality

              transcoder has no bugs reported.

            kandi-Security Security

              transcoder has no vulnerabilities reported, and its dependent libraries have no vulnerabilities reported.

            kandi-License License

              transcoder is licensed under the MIT License. This license is Permissive.
              Permissive licenses have the least restrictions, and you can use them in most projects.

            kandi-Reuse Reuse

              transcoder releases are available to install and integrate.
              Installation instructions are not available. Examples and code snippets are available.

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            transcoder Key Features

            No Key Features are available at this moment for transcoder.

            transcoder Examples and Code Snippets

            No Code Snippets are available at this moment for transcoder.

            Community Discussions


            Spawning NodeJS worker thread inside of async function doesn't respect promise resolution
            Asked 2021-Jun-07 at 23:41

            I've got an async function that launches a NodeJS worker thread like so:



            Answered 2021-Jun-07 at 23:41

            So, NOTHING about the code inside your async function supports promises. You can't just throw random asynchronous (but not promise-based) code inside an async function and expect anything to work. An async function will work just fine with promise-based asynchronous functions that you await. Otherwise, it knows nothing about your asynchronous operations in there. That's why calling encode() returns immediately without waiting for anything to complete.

            In addition, return transcode_data is inside an asynchronous callback. Returning inside that callback just goes back into the system code that called the callback and is dutifully ignored. You're not returning anything there from the async function itself. You're returning to that callback.

            Since your operation is not promise-based, to solve this, you will have to make it promise-based by wrapping it in a promise and then manually resolved or rejecting that promise when needed with the proper values. You can do that like this:



            I am getting this error java.lang.NoClassDefFoundError: org/w3c/dom/ElementTraversal
            Asked 2021-Apr-15 at 10:35

            Before anyone mark this as a duplicate, I referenced this stackoverflow question before posting here, I tried all solutions in that thread but still it is not working for me. I am migrating a legacy java project into spring boot application. When I start the server I am getting this stacktrace,



            Answered 2021-Apr-08 at 15:49

            This might have to do with you not using Generics with your java Collections



            FFMPEG Streaming, using list for multiple presentations
            Asked 2021-Jan-03 at 12:52

            I am currently using a third party library to transcode videos from mp4 to HLS. Great documentation and works fine however I have an issue by passing a list to hls.representations() that I think is something wrong I do. Here is how I run my code.



            Answered 2021-Jan-03 at 12:52

            It turns out I needed to include *args when passing to function. As an example, instead of hls.representations(presetList) I should be doing hls.representations(*presetList)



            Java Swing - BasicStroke smaller to the left
            Asked 2020-Dec-31 at 11:54

            I'm writing a simple 2D chess game with Java Swing but I have encountered a problem with BasicStroke: the left side is smaller than the right side.

            In the case of the image, the left side is smaller by 5 pixels (calculated with GIMP).

            This is the class that realizes the interface



            Answered 2020-Dec-31 at 11:54

            I solved by following this answer

            This is my code



            Unable to build FOP with mvn
            Asked 2020-Dec-18 at 15:03

            After updating the code of FOP with svn, I tried to build the executable with mvn since ant is about to be deprecated, but I got errors trying to build fop-util. This is the script I ran:



            Answered 2020-Dec-18 at 15:03

            I found a solution by erasing the local copy of the repository, downloading it again and recompiling everything:



            How to get metadata ( MaxWidth, MaxHeight etc) of preset in AWS elastic trans coding
            Asked 2020-Dec-16 at 12:26

            Using aws elastic transcoder in out ongong project. i would like get aws elastic transcoder preset id's meta data, about MaxWidth, MaxHeight ete.



            Answered 2020-Dec-16 at 12:26

            Solution : Follow this link -

            Steps :

            1. Install aws cli in your system
            2. aws cli configure using key
            3. aws elastictranscoder read-preset --id (1351620000001-500020) // you will get details



            Need to check video resolution before transcoding video file
            Asked 2020-Dec-14 at 21:02

            I am converting video files using an elastic transcoder. AWS Lambda function get video file from s3 bucket and convert it according to PresetId.

            But, I need to compare video file resolution with PresetId. If the video file resolution is higher than the PresetId video resolution, then convert this video file, otherwise do not need to convert all video files.



            Answered 2020-Dec-14 at 13:24

            Do you have access to ffmpeg/ffprobe/ffplay from AWS - is it possible to call them and take their console output? I'm not sure about what's allowed in AWS, but on Desktop you could call ffprobe etc. - it could return text or even JSON. Many ways are suggested here: Getting video dimension / resolution / width x height from ffmpeg

            One of the suggested ways:



            How to create a DASH VOD for Chromecast with ffmpeg?
            Asked 2020-Nov-19 at 06:50

            I need to serve long videos (~2 hours) from a web server to mobile clients and the clients should be able to play the videos via Chromecast. I have chosen mpeg-dash for this purpose: video encoder is h.264 (level 4.1), audio is aac (although I've tried diffrent ones).

            I've tried ffmpeg, MP4Box and some other tools to generate videos; most of the time I succeeded playing them on VLC or on a mobile client (locally), but not with Chromecast.

            I've tried Amazon's Elastic Transcoder and it worked, but it gave me one big file whereas I need many small segments.

            CORS are set.

            Chromecast remote debugging didn't help much.

            Do you know how to do this?



            Answered 2020-Nov-19 at 06:50

            Finally, I have managed to do it. This is the script that converts a video file to dash with many segments which can be played by Chromecast:



            how to secure HLS streaming using AWS for mobile devices?
            Asked 2020-Oct-04 at 23:03

            We have some videos in an S3 bucket. they've been transformed using AWS Elastic Transcoder to .m3u8 / .ts We want the users to be able to stream these videos on both a web app and a mobile app.

            Now, we want to secure this streaming, so our videos won't get pirated.

            So, our proposed solution is as follows:

            • Prevent public access to the S3 bucket
            • create a cloudfront distribution with the bucket as the origin
            • Only enable access to this CDN using pre-signed URLs/cookies
            • For web app: use a pre-signed cookie (set by an endpoint at our backend that requires authentication), so that it works well with HLS (since the app needs to fetch a new segment every few seconds)

            But now we don't know what to do with our mobile app. We can't use pre-signed cookies since there's no browser, and we can't use pre-signed URLs, since we'll need a signed URL for each segment we need to fetch. Any suggestions and solutions are welcome.



            Answered 2020-Oct-04 at 23:03

            For our similar use-case:

            1. We used CloudFront url and not S3 signed url. Because S3 signed URL is valid at object level and not folder level.
            2. For paid videos, security and access was managed by Lambda@Edge on viewer requests.
            3. Although we used OAuth and database inside that lambda, but surprisingly, we didn't face any bottlenecks on Lambda@Edge. For future plans we considered using Redis for seamless access validation inside Lambda@Edge.



            AWS elastic transcoder -- Gif output is massive
            Asked 2020-Sep-25 at 11:03

            So I'm playing around with Elastic transcoder to convert an uploaded video from my S3 bucket to a GIF.

            At the moment, when I upload to S3, I have a basic lambda which triggers a pipeline to do the converting to gif.

            Now whats happening here is I upload a 7mb mp4 and when its transcoded the output gif is 80+ MB's??

            I've looked through the docs and I cant find anything that helps me. Can anyone shed some light...

            Below is my presets in elastic transcoding



            Answered 2020-Sep-25 at 11:03

            There is absolutely no error here, GIFs are BIG.

            A 10 second mp4 at 24 frames/sec at a resolution of 1024x768 and a color space of 3 bytes (1 for each of red green and blue) contains 540 MB of data.

            Video compression is AMAZING and it can really squeeze that into something small, but GIFs are notoriously inefficient at doing the same. Also, their quality is abysmal. For more information on this, please check out this amazing answer:

            For the solution to your problem: Use WebP

            It is universally supported, much more efficient, and looks a lot better.

            Also, be careful with hosting costs in AWS, as only data IN is free, data going OUT can get very expensive!


            Community Discussions, Code Snippets contain sources that include Stack Exchange Network


            No vulnerabilities reported

            Install transcoder

            You can download it from GitHub.


            For any new features, suggestions and bugs create an issue on GitHub. If you have any questions check and ask questions on community page Stack Overflow .
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            gh repo clone floostack/transcoder

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